Draft-regulator for stoves.



C. V. HILL.

DHAFFREGULATOR FOR STOVES.

APPLICATION FILED MAR 11, I916.

1,197,486. Patented Sept. 5,1916.

2 SHEETS-SHEET I.

crv. HILL DRAFT REGULATOR FOR STOVES.

APPLICATION "LED ML 7, 1916. 7 1,197,486. Patented Sept. 5,1916.

2 SHEETS-SHEET 2.

M v attains CLEMENT HILL, F TREN'JLON, NEW JERSEY. A

DRAFT-REGULATOR FOR STOVES.

1,1197 AME.

Specification of Letters Patent.

Patented Sept. a, rare.

Application filed March 17,1916. Serial No. 84,832.

To all whom it may concern Be it known that l, CLEMENT V. HILL, a citizen of the United States, residing at Trenton, in the county of Mercer and State of New Jersey, have invented certain new and useful Improvements in Draft-Regulators for Stoves, of which the following is a specification.

In the drawings: Figure 1 is a front elevation of a heating stove with my improvements embodied. Fig. 2 is a top plan view of my'attachment. Fig. 3 is a perspective view of my attachment. Fig. 4 is a longitudinal vertical section through my attachment showing it in position on the stove, a detail section of the stove being shown. Fig. 5 is an end elevation of the attachment. Fig. 6 is a detail top plan view of Fig. 4, parts being removed and parts being in section.

The object ofmy invention is to provide an inexpensive, reliable draft regulating attachment for heating stoves which can be readily and cheaply applied to the commercial heating stove.

A further object of my invention is to pro-.

vide an attachment of this character which may be readily and cheaply attached to a check damper of a commercial stove so that the damper and attachment may cooperate to control the draft in a stove.

A still further object of my invention is to provide such an attachment constructed to be operated and controlled by a temperature responsive device, such for instance, as

a thermostat; and with these and other objects in'view my invention consists of the parts and combination of parts as will be hereinafter specifically pointed out.

The reference character 1 designates a heating stove provided with the usual ash pit 2, having theusual door 3, the body of the stove having an annular flange 1 which fits over the top of the wall of the ash pit, as shown.

The stove is provided with a check damper 5 on its top plate, which damper is provided with a lever 6 pivoted on the top of the stove, said lever having an eye through its outer end.

A draft or heating regulating attachtion, which shape assures maximum strengthwith a minimum amount of metal. This frame is gradually flattened toward its outer end where it terminates in a T-head 8 which provides seats for two thermostats 9 which are secured, in a suitable way, to said seats. A lug 10 projects laterally from said T-head.

The inner end of the frame terminates in an air inlet chamber 11 which has front, side and bottom walls, the rear and top of the chamber being open. The top of the front and side walls are, preferably, inclined toward the front of the chamber as shown. At the rear, the chamber is provided with two flanges 12, one on each side, which terminate, at the top, in forwardly projecting perforated lugs 13. The lugs 18 have a connecting web 14 through which is formed an elongated opening or slot 15. Depending from the bottom of the air chamber 11 is a lug 16 preferably constructed with a slot 17 open at its lower end. The frame or arm 7 is also provided with an elongated slot 18 extending therethrough near the air chamber 11.

A cover, or valve, 19 is' provided for closing the top of the air inlet chamber, said cover being provided with a T-shaped hinge member 20 which is adapted to pass through the slot 5, the T-head engaging the rear face of the web 14. The free end of the cover 19 is provided with a. perforated lug 21.

A lever 22 terminating at its outer end in a substantially'T-head is providedvwith 1 a lug 23 corresponding to the lug 10 of the frame 7. The frame 7 and lever 22 are loosely and pivotally secured together at their outer ends by means of a bolt 24 which passes through said lugs 10 and 23, said bolt being provided with a thumb nut 25. The T-head of the lever 22 constitutes a seat for the thermostats 9.

Secured to the free end of the lever 22 is a link 26, the upper end of which is loosely secured to the perforated lug 21 of the cover or valve 19. A rod 27 is connected at its lower end to the lug 21 of the cover or valve 19 and at its upper end to the lever 6 of the check damper 5., as clearly shown in Fig. 1.

The wall of the ash pit is provided with an opening 28 on the sides of which is a recessed seat 29 constructed to receive the flanges 12 of the-air chamber; the lugs 13 fitting over the base flange 4 of the stove body and secured in that position by means of screws, bolts, or the like, While a bolt is passed through the lug 16 and wall of the ash pit. Thus the frame 7 with its parts, constituting. a draft or temperature regulator, is firmly and detachably secured to and solely supported from the stove or heater.

In operation when the temperature of the room is normal the check damper 5 is open and the cover or valve 19 is in closed position. Now when the temperature of the room falls below normal the double wafer ,7

ature of the heat radiated from the stove and consequently raising the temperature of the room. As soon as the predetermined normal degree of the heat is reached the thermostat expands and moves the lever 22 downward, thereby closing the cover 19 and opening the check damper.

What I claim is:

1. An attachment adapted to be applied to a. draft opening of a stove or furnace, comprising an arm having at one end an air inlet chamber having front, side and bottom walls, the rear and top of the chamber being open, and at the other end a thermostat, a valve for governing said air chamher, and means connecting the thermostat with said valve.

2. An attachment adapted to be applied to a draft opening of a stove or furnace, comprising an arm having at one end an air inlet chamber, and at the other end a thermostat, a valve for governing said air chamber, and means connecting the thermostat with said valve, securing lugs extending from the top and bottom of said chamber for securing said attachment to a stove or furnace.

3. An attachment adapted to be applied to a draft opening of a stove or furnace, comprising an arm having at one end an air inlet chamber, and at the other end a thermostat, a valve for governing said air chamber, means connecting the thermostat with said valve, flanges extending from the rear of sa d chamber terminating at the top in lugs for securing said attachment to a stove or furnace.

mostat, a valve for governing said air chamioness ber, means connecting the thermostat with said valve, flanges extending from the rear of said chamber and terminating at the top in lugs projecting rearwardly from the chamber, and a web connecting said lugs above the chamber, said web having an elongated slot in which the said valve is hinged.

5. In a heat regulating attachment for a stove, a frame comprising an arm, a thermostat seat at the outer end of the arm and an air chamber at the inner end of the arm, a valve for said chamber, a lever loosely connected to the outer end of the said arm, and a link connecting the free end of said lever to said valve.

6. In a heat regulating attachment for a stove, a frame comprisingan arm, a thermostat seat at the outer end of the arm and an air chamber at the inner end of the arm, a valve for said chamber, a lever loosely connected to the outer end of the said arm, and a link connecting the free end of the said lever to said valve, and a thermostat secured to said seat between said arm and lever.

7. In a heater for brooders having a check damper, an ashdoor, and an air inlet in the wall ofthe ash pit, an attachment for said heater comprising a frame, an air chamber at one end of said frame constructed to be secured to the heater in constant communication with said inlet, a thermostat secured to said frame, a lever pivoted to said frame, in engagement with the thermostat, a valve for the said air chamber, a link connecting the said lever and valve, and a rod connecting said valve and check damper, whereby the valve and check damper are simultaneously operated by the thermostat.

8. The combination with a heating stove having an ash pit, an ash door and an air inlet through the wall of the ash pit, of an air chamber open at the top and rear, the opening in the rear registering with the air inlet in the wall of the ash pit, a flange projecting above said chamber and provided with a slot, a lug projecting substantially at right angles to said flange, a cover for said chamber loosely hinged in the slot of said flange, outwardly extending flanges at the rear of said chamber, and a lug depending from said chamber, saidchamber being secured to the stove by means of said lugs, and a temperature responsive device connected to and operating the said cover whereby the draft of said stove is regulated.

In testimony whereof I aflix my signature in the presence of two witnesses.

CLEMENT V. HILL.

Witnesses:

WILLIAM J. Plnnnnron'r, HOWARD I. ToMLINsoN. 

